* {
    margin: 0;
    padding: 0;
    font-family:  PingFangSC-Regular,Microsoft YaHei,"\5FAE\8F6F\96C5\9ED1",verdana,sans-serif,Simsun,STXihei;;
}

html, body{
    width: 100%;
    height: 100%;
}

body {    
    background: #F5F6F7;
}

header.header {
    width: 100%;
    background: #ffffff;
    box-shadow: 0 2px 4px 0 rgba(0,0,0,.05);
    height: 60px;
}

nav {
    width: 75%;
    margin: 0 auto;
    display: flex;
    height: 100%;
    align-items: center;
    justify-content: flex-end;
}

div.welcome {
    color: #666666;
    font-size: 16px;
}

div.logout {
    border-left: 1px solid #666666;
    padding-left: 15px;
    margin-left: 15px;
}

div.logout a {
    display: block;
    color: #ffffff;
    background: #1a995c;
    text-align: center;
    font-size: 12px;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
}


div.container {
    width: 75%;
    margin: 10px auto;
    background: rgb(227, 232, 237);
}

table {
    width: 100%;
    margin-top: 20px;
    border-collapse: collapse;
}

th {
    background: #787878;
    color: white;
    padding: 5px;
    font-size: 15px;
}

tr:hover {
    background: #F0F0F0;
}

th.operate {
    text-align: left;
    text-indent: 6px;
}

td {
    padding: 8px;
    font-size: 14px;
    text-align: center;
    border-bottom: 1px solid #787878;
}

tr:hover td {
    color: #333333;
    font-weight: bold;
}